Most existing installations were built before the latest energy efficient technology was available, and also at a time when energy costs were lower. As a result, the main focus for 'new build' projects was (and often still is) to minimize investment cost.
This chapter therefore examines how existing equipment can be improved as well as the choices available for energy efficient new equipment.
There are many references in this chapter to new product types. Most, if not all of these can be researched easily using the Internet.
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